<md-button-toggle-group #group="mdButtonToggleGroup">
  <md-button-toggle value="left">
    <md-icon>format_align_left</md-icon>
  </md-button-toggle>
  <md-button-toggle value="center">
    <md-icon>format_align_center</md-icon>
  </md-button-toggle>
  <md-button-toggle value="right">
    <md-icon>format_align_right</md-icon>
  </md-button-toggle>
  <md-button-toggle value="justify" disabled>
    <md-icon>format_align_justify</md-icon>
  </md-button-toggle>
</md-button-toggle-group>
<div class="example-selected-value">Selected value: {{group.value}}</div>
